Five pulse rates are randomly selected from a set of measurements. The five pulse rates have a mean of 78.6 beats per mi

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Five pulse rates are randomly selected from a set of
measurements. The five pulse rates have a mean of
78.6
beats per minute. Four of the pulse rates are
76​,
60​,
68​,
and
94.
a.
Find the missing value.
b.
Suppose that you need to create a list of n values that have a
specific known mean. Some of the n values can be freely selected.
How many of the n values can be freely assigned before the
remaining values are​ determined? (The result is referred to as the
number of degrees of​ freedom.)
a. The missing value is
nothing
beats per minute.
​(Type an integer or a decimal. Do not​ round.)